From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Tue, 24 Feb 2015 15:39:47 +0100
Subject: [U-Boot] [PATCH v5 6/7] odroid: defconfig: disable memset at
	malloc init
In-Reply-To: <1424774311-23726-7-git-send-email-p.marczak@samsung.com>
References: <1424711811-3442-1-git-send-email-p.marczak@samsung.com>
 <1424774311-23726-1-git-send-email-p.marczak@samsung.com>
 <1424774311-23726-7-git-send-email-p.marczak@samsung.com>
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To: u-boot@lists.denx.de

Hi Przemyslaw,

> Reduce the boot time of Odroid X2/U3 by disabling the memset
> at malloc init.
> 
> This was tested on Odroid X2.
> A quick test with checking gpio pin state using the oscilloscope.
> Boot time from start to bootcmd (change gpio state by memory write
> command):
> - ~228ms - before this change (arch memset enabled for .bss clear)
> - ~100ms - after this change
> 
> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> 
> ---
> Changes V3
> - update commit head
> 
> Changes V4
> - odroid_defconfig: remove CONFIG_EXPERT
> - odroid_defconfig: disable CONFIG_SYS_MALLOC_INIT_DO_ZEROING
> 
> Changes v5
> - update disabled config name to CONFIG_SYS_MALLOC_CLEAR_ON_INIT
> ---
>  configs/odroid_defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/configs/odroid_defconfig b/configs/odroid_defconfig
> index a842837..aac9f5a 100644
> --- a/configs/odroid_defconfig
> +++ b/configs/odroid_defconfig
> @@ -3,3 +3,4 @@ CONFIG_ARCH_EXYNOS=y
>  CONFIG_TARGET_ODROID=y
>  CONFIG_OF_CONTROL=y
>  CONFIG_DEFAULT_DEVICE_TREE="exynos4412-odroid"
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set

Acked-by: Lukasz Majewski <l.majewski@samsung.com>

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group